We have reasons to keep it enabled by default so package maintainer will need to disable it by default anyway. Personally I wish to eventually provide better option to everyone, but that launcher is so unimportant that it's unlikely I'll have time on it in foreseeable future. So I think community of debian provide good option for people that need it.

Also it's of course not a case for our project, but I suppose there is developers who simply don't care about things like privacy or security as much as debian community do and I see no reason why they must spend their time on that instead of actual development.